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    题名: Is there a maximum magnetic field in QED?
    作者: Chung-Ngoc Leung;Shang-Yung Wang
    贡献者: 淡江大學物理學系
    日期: 2009-08-27
    上传时间: 2010-02-23 14:10:56 (UTC+8)
    出版者: Elsevier
    摘要: It was recently conjectured by Shabad and Usov that there exists in QED a maximum magnetic field of 1042 G, above which the magnetized vacuum becomes unstable. Using a nonperturbative analysis that consistently incorporates the effective electron mass and the screening effect in a strong magnetic field, we show that the conjectured phenomenon of positronium collapse never takes place. Thus, there does not exist a maximum magnetic field in QED and the magnetized vacuum is stable for all values of the magnetic field.
    關聯: Physics Letters B 674(4-5), p.344-347
    DOI: 10.1016/j.physletb.2009.03.039
    显示于类别:[物理學系暨研究所] 期刊論文

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